Motorola's transistor group is still in the game, although they are part of NXP (Phillips) now after Freescale got bought by NXP. They released a new generation of transistors for their mobile radio line a few years ago:
http://www.nxp.com/products/rf/rf-power-transistors/rf-mobile-radio:RF-MOBIL...
They're pretty cheap - target market is public safety radio so cost is a factor. I used the AFT05MS004N on the PA design for ECOSat-II. Richardson RFPD (now owned by Arrow) carries most of the AFT line.
You can get official Microwave Office and ADS models for most of the Freescale stuff, assuming you can get a license for one of those. That will significantly cut down on the development time.
On Tue, Apr 5, 2016 at 6:31 AM, Robert Bruninga bruninga@usna.edu wrote:
Asking AMSAT RF experts.
What is the cheapest garden variety UHF Power Transistor good to 450 MHz and suitable for 20, 30W or more? Im finding transistors can cost $30 and up. That’s steep for an idea we are pursuing…
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